Diodes AH1822 Manuel d'utilisateur télécharger pdf

AH1822

MICROPOWER OMNIPOLAR HALL-EFFECT SENSOR

SWITCH

AH1822 Rev. 5 1 of 9 FEBRUARY 2009

www.diodes.com © Diodes Incorporated

• Micropower operation

• Operation with magnetic field of either north or south

pole (omnipolar)

• 2.5V to 5.5V battery operation

• Chopper stabilized

• Superior temperature stability

• Extremely Low Switch-Point Drift

• Insensitive to Physical Stress

• Good RF noise immunity

• -40°C to 85°C operating temperature

• ESD (HBM) ＞ 5KV

• DFN2015-6 and DFN3020-6: Available in “Green”

Molding Compound (No Br, Sb)

• Lead Free Finish/ RoHS Compliant (Note 1)

AH1822 is comprised of two Hall effect plates and an open-drain

output driver, mainly designed for battery-operation, hand-held

equipment (such as Cellular and Cordless Phone, PDA). The

total power consumption in normal operation is typically 24μW

with a 3V power source.

Either north or south pole of sufficient strength will turn the output

on. The output will be turned off under no magnetic field. While

the magnetic flux density (B) is larger than operating point (Bop),

the output will be turned on (low), the output is held until B is

lower than release point (Brp), then turned off.

Applications

• Cover switch in clam-shell cellular phones

• Cover switch in Notebook PC/PDA

• Contact-less switch in consumer products

Ordering Information

AH 1822 - XXX G - 7

PackingGreen

7 : Tape & Reel

G : Green

Package

FT4 : DFN2015-6

FU4 : DFN3020-6

Device

Package

Code

Packaging

(Note 2)

7” Tape and Reel

Quantity Part Number Suffix

AH1822-FT4G-7 FT4 DFN2015H4-6 3000/Tape & Reel -7

AH1822-FU4G-7 FU4 DFN3020H4-6 3000/Tape & Reel -7

Notes: 1. EU Directive 2002/95/EC (RoHS). All applicable RoHS exemptions applied, see EU Directive 2002/95/EC Annex Notes.

2. Pad layout as shown on Diodes Inc. suggested pad layout document AP02001, which can be found on our website at

http://www.diodes.com/datasheets/ap02001.pdf

Features

General Description

1 2 3 4 5 6 7 8 9

Résumé du contenu

Page 1 - AH1822

AH1822MICROPOWER OMNIPOLAR HALL-EFFECT SENSOR SWITCH AH1822 Rev. 5 1 of 9

Page 2 - Block Diagram

AH1822MICROPOWER OMNIPOLAR HALL-EFFECT SENSOR SWITCH AH1822 Rev. 5 2 of 9

Page 3 - Typical Circuit

AH1822MICROPOWER OMNIPOLAR HALL-EFFECT SENSOR SWITCH AH1822 Rev. 5 3 of 9

Page 4 - Diodes Incorporated

AH1822MICROPOWER OMNIPOLAR HALL-EFFECT SENSOR SWITCH AH1822 Rev. 5 4 of 9

Page 5 - Performance Characteristics

AH1822MICROPOWER OMNIPOLAR HALL-EFFECT SENSOR SWITCH AH1822 Rev. 5 5 of 9

Page 6 - ( Top View )

AH1822MICROPOWER OMNIPOLAR HALL-EFFECT SENSOR SWITCH AH1822 Rev. 5 6 of 9

Page 7 - Bottom View

AH1822MICROPOWER OMNIPOLAR HALL-EFFECT SENSOR SWITCH AH1822 Rev. 5 7 of 9

Page 8 - Taping Orientation

AH1822MICROPOWER OMNIPOLAR HALL-EFFECT SENSOR SWITCH AH1822 Rev. 5 8 of 9

Page 9

AH1822MICROPOWER OMNIPOLAR HALL-EFFECT SENSOR SWITCH AH1822 Rev. 5 9 of 9

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Diodes AH1822 Manuel d'utilisateur

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